/* =========================================================
   手机行业品牌排行榜 · 共享样式
   深色榜单风格：大排名数字 + 品牌色 + 金色指数
   ========================================================= */
:root {
  --bg: #0b1220;
  --bg2: #101a2e;
  --card: #141f36;
  --card2: #1a2742;
  --line: #243350;
  --text: #e8edf6;
  --muted: #93a2bd;
  --gold: #f5c86b;
  --gold2: #e0a63c;
  --link: #7fb3ff;
  --ok: #4ade80;
  --radius: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",sans-serif;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(64,110,255,.16), transparent 60%),
    radial-gradient(900px 420px at -10% 0%, rgba(245,200,107,.08), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 18px; }

/* ---------- 顶部导航 ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,18,32,.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-nav .wrap { display: flex; align-items: center; gap: 14px; height: 56px; }
.brand-mark { font-weight: 700; font-size: 16px; letter-spacing: .5px; color: var(--text); display:flex; align-items:center; gap:8px; }
.brand-mark .dot { width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg,var(--gold),var(--gold2)); box-shadow: 0 0 10px rgba(245,200,107,.7); }
.site-nav .crumb { font-size: 13px; color: var(--muted); margin-left: auto; }
.site-nav .crumb a { color: var(--muted); }

/* ---------- Hero ---------- */
.hero { padding: 46px 0 30px; text-align: center; }
.hero .kicker {
  display: inline-block; font-size: 12px; letter-spacing: 2px; color: var(--gold);
  border: 1px solid rgba(245,200,107,.35); padding: 4px 12px; border-radius: 999px; margin-bottom: 16px;
}
.hero h1 { font-size: 32px; font-weight: 800; letter-spacing: 1px; }
.hero .sub { margin-top: 10px; color: var(--muted); font-size: 14px; }
.hero .period {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 14px;
  background: var(--card); border: 1px solid var(--line); padding: 6px 14px; border-radius: 999px;
  font-size: 13px; color: var(--text);
}
.hero .period .tag { background: var(--gold2); color: #1a1404; font-weight: 700; font-size: 11px; padding: 1px 8px; border-radius: 999px; }

/* ---------- 排行榜 ---------- */
.rank-list { display: flex; flex-direction: column; gap: 8px; margin: 24px 0 40px; }
.rank-item {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  align-items: center; gap: 14px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 16px; transition: transform .15s ease, border-color .15s ease, background .15s ease;
}
.rank-item:hover { transform: translateY(-2px); border-color: rgba(245,200,107,.5); background: var(--card2); }
.rank-no { font-size: 24px; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--muted); text-align: center; }
.rank-no.top { color: var(--gold); }
.rank-body { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-dot { width: 34px; height: 34px; border-radius: 9px; flex: 0 0 34px; display:flex; align-items:center; justify-content:center; color:#fff; font-weight:800; font-size:14px; }
.rank-name { font-size: 17px; font-weight: 700; }
.rank-name small { display: block; font-size: 12px; font-weight: 400; color: var(--muted); }
.rank-val { text-align: right; }
.rank-val .num { font-size: 20px; font-weight: 800; color: var(--gold); font-variant-numeric: tabular-nums; }
.rank-val .unit { font-size: 11px; color: var(--muted); display: block; margin-top: 1px; }

/* ---------- 区块标题 ---------- */
.section-title { font-size: 20px; font-weight: 800; margin: 34px 0 14px; padding-left: 12px; border-left: 4px solid var(--gold); }
.prose { color: #c6d2e6; font-size: 14px; }
.prose p { margin-bottom: 12px; }
.prose h3 { color: var(--text); font-size: 16px; margin: 18px 0 8px; }
.prose ul { margin: 0 0 12px 20px; }
.prose li { margin-bottom: 6px; }
.prose strong { color: var(--gold); }

/* ---------- 产品图与参数表 ---------- */
.product-photo { margin: 18px 0 6px; text-align:center; }
.product-photo img { max-width: 100%; max-height: 420px; border-radius: 14px; border: 1px solid var(--line); background:#fff; }
.photo-cap { font-size: 12px; color: var(--muted); margin-top: 6px; }
.spec-table th { width: 110px; background: var(--card2); color: var(--gold); }

/* ---------- 品牌页 ---------- */
.brand-logo { width: 128px; height: 128px; object-fit: cover; object-position: center; border-radius: 14px; background: #fff; padding: 6px; flex: 0 0 128px; box-sizing: border-box; }
.brand-hero { display: flex; align-items: center; gap: 18px; margin: 26px 0 8px; flex-wrap: wrap; }
.brand-hero .brand-dot { width: 64px; height: 64px; border-radius: 16px; font-size: 26px; flex: 0 0 64px; }
.brand-hero h1 { font-size: 30px; font-weight: 800; }
.brand-hero .en { color: var(--muted); font-size: 14px; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 20px 0 6px; }
.metric { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 12px; text-align: center; }
.metric .k { font-size: 12px; color: var(--muted); }
.metric .v { font-size: 22px; font-weight: 800; color: var(--gold); font-variant-numeric: tabular-nums; margin-top: 4px; }
.metric .v small { font-size: 12px; color: var(--muted); font-weight: 400; }
.breadcrumb { font-size: 13px; color: var(--muted); margin: 18px 0 0; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--link); }

/* ---------- 相关品牌 ---------- */
.rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 10px 0 30px; }
.rel-item { display: flex; align-items: center; gap: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; color: var(--text); font-size: 14px; font-weight: 600; transition: border-color .15s ease, background .15s ease; }
.rel-item:hover { border-color: rgba(245,200,107,.5); background: var(--card2); text-decoration: none; }
.rel-item .brand-dot { width: 28px; height: 28px; border-radius: 7px; flex: 0 0 28px; font-size: 12px; }
.rel-item .r { margin-left: auto; color: var(--muted); font-size: 12px; font-weight: 400; }

/* ---------- 数据表 ---------- */
.tbl-wrap { overflow-x: auto; margin: 12px 0 26px; border: 1px solid var(--line); border-radius: var(--radius); }
table.data { width: 100%; border-collapse: collapse; background: var(--card); font-size: 13px; min-width: 460px; }
table.data th, table.data td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.data thead th { background: var(--card2); color: var(--gold); font-size: 12px; letter-spacing: .5px; }
table.data tbody tr:hover td { background: var(--card2); }
table.data td.num { font-variant-numeric: tabular-nums; color: var(--text); }
table.data a { color: var(--link); }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: 50px; padding: 24px 0 40px; text-align: center; color: var(--muted); font-size: 12px; }
.site-footer p { margin-bottom: 4px; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--link); }

/* ---------- 404 ---------- */
.err404 { text-align: center; padding: 90px 0 70px; }
.err404 .code { font-size: 72px; font-weight: 800; color: var(--gold); line-height: 1; }
.err404 h1 { font-size: 22px; margin: 14px 0 8px; }
.err404 p { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.err404 .btn { display: inline-block; background: var(--gold2); color: #1a1404; font-weight: 700; padding: 10px 22px; border-radius: 999px; font-size: 14px; }
.err404 .btn:hover { text-decoration: none; filter: brightness(1.08); }

/* ---------- 响应式 ---------- */
@media (max-width: 700px) {
  .hero h1 { font-size: 24px; }
  .rank-item { grid-template-columns: 40px 1fr auto; gap: 10px; padding: 10px 12px; }
  .rank-no { font-size: 18px; }
  .rank-name { font-size: 15px; }
  .rank-val .num { font-size: 16px; }
  .metric-row { grid-template-columns: 1fr; }
  .rel-grid { grid-template-columns: 1fr; }
  .brand-hero h1 { font-size: 24px; }
}